题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1162 Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6866    Accepted Submission(s): 3469 Problem Description Eddy begins to like p…

Eddy's picture 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1162 ——每天在线,欢迎留言谈论. 题目大意: 给你N个点,求把这N个点连在一起的最短总距离. 思路: 假设每两两点之间都有路径,求最小生成树. AC代码:(Java) import java.util.Scanner; import java.math.*; public class Main { public static final int MAXN = 110;…

Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6339    Accepted Submission(s): 3179 Problem Description Eddy begins to like painting pictures recently ,he is sure of himself to b…

文字描述 用连通网来表示n个城市及n个城市间可能设置的通信线路,其中网的顶点表示城市,边表示两城市之间的线路,赋于边的权值表示相应的代价.对于n个定点的连通网可以建立许多不同的生成树,每一棵生成树都可以是一个通信网.现在,我们要选择这样一个生成树,使总的耗费最少.这个问题就是构造连通网的最小代价生成树(Minimum Cost Spanning Tree: 最小生成树)的问题.一棵生成树的代价就是树上各边的代价之和. 有多种算法可以构造最小生成树,其他多数都利用的最小生成的MST(minimum…

题目连接:http://acm.hdu.edu.cn/showproblem.php?pid=1162 Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 10085    Accepted Submission(s): 5094 Problem Description Eddy begins to like p…

我们在图的定义中说过,带有权值的图就是网结构.一个连通图的生成树是一个极小的连通子图,它含有图中全部的顶点,但只有足以构成一棵树的n-1条边.所谓的最小成本,就是n个顶点,用n-1条边把一个连通图连接起来,并且使得权值的和最小.综合以上两个概念,我们可以得出:构造连通网的最小代价生成树,即最小生成树(Minimum Cost Spanning Tree). 找连通图的最小生成树,经典的有两种算法,普里姆算法和克鲁斯卡尔算法,这里介绍普里姆算法. 为了能够讲明白这个算法,我们先构造网图的邻接矩阵,…

普里姆算法(Prim算法) #include<bits/stdc++.h> using namespace std; #define MAXVEX 100 #define INF 65535 typedef char VertexType; typedef int EdgeType; typedef struct { VertexType vexs[MAXVEX]; EdgeType arc[MAXVEX][MAXVEX]; int numVertexes, numEdges; }MGraph…

坐标之间的距离的方法,prim算法模板. Eddy's picture Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5620    Accepted Submission(s): 2821 Problem Description Eddy begins to like painting pictures recently ,he i…

Eddy's pictureTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11970    Accepted Submission(s): 6008 Problem DescriptionEddy begins to like painting pictures recently ,he is sure of himself to be…

题目链接 Problem Description Eddy begins to like painting pictures recently ,he is sure of himself to become a painter.Every day Eddy draws pictures in his small room, and he usually puts out his newest pictures to let his friends appreciate. but the res…